49656431879823 has 8 divisors (see below), whose sum is σ = 66208613422336. Its totient is φ = 33104269128600.

The previous prime is 49656431879773. The next prime is 49656431879837. The reversal of 49656431879823 is 32897813465694.

It is a Cunningham number, because it is equal to 7046732²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49656431879823 - 2²² = 49656427685519 is a prime.

It is a super-2 number, since 2×49656431879823² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49656431879843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523368 + ... + 10570098.

It is an arithmetic number, because the mean of its divisors is an integer number (8276076677792).

Almost surely, 2^{49656431879823} is an apocalyptic number.

49656431879823 is a deficient number, since it is larger than the sum of its proper divisors (16552181542513).

49656431879823 is a wasteful number, since it uses less digits than its factorization.

49656431879823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395645.

The product of its digits is 1881169920, while the sum is 75.

The spelling of 49656431879823 in words is "forty-nine trillion, six hundred fifty-six billion, four hundred thirty-one million, eight hundred seventy-nine thousand, eight hundred twenty-three".